/usr/share/pixmaps/greenwich.png is in greenwich 0.8.2-6.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/pixmaps/../icons/hicolor/48x48/apps/greenwich.png
/usr/share/pixmaps/../icons/hicolor/48x48/apps/greenwich.png